Feature Request: support for setting variations for OpenType fonts

[geoffder]

Currently there is no way to get/set variations for OpenType variable fonts. I'm curious to try out variable weight particularly for making rounded 3d text polyhedron meshes, as my experiments with offsetting font paths (analogous to modulating their weight) have not been very successful.

In the Cairo API:

• cairo_font_options_get_variations
• cairo_font_options_set_variations

[Chris00]

Thanks for your interest in these bindings. May you submit a PR?

[geoffder]

I have been working on other things, but I can give it a shot when I'm at the point that I am itching to experiment with what I mentioned before again.